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3 years ago

Mr. Seidel filled up his 14-gallon gas tank for $29.26, what was the price per gallon

Mathematics

1 answer:

Taya2010 [7]3 years ago

6 0

Answer:

price per gallon is $2.09

Step-by-step explanation:

29.26/14=2.09

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Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations using the t statistic

Yuliya22 [10]

Answer:

a) For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

$df = n-1= 10-1=9$

d.9

b) $s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15$

a.15

c) For this case we have the sample size n = 25 and the sample variance is $s^2 =400$ , the standard error can founded with this formula:

$SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80$

Step-by-step explanation:

Part a

For the first part we have a sample of n =10 and we want to find the degrees of freedom, and we can use the following formula:

$df = n-1= 10-1=9$

d.9

Part b

From a sample we know that n=41 and SS= 600, where SS represent the sum of quares given by:

$SS = \sum_{i=1}^n (X_i -\bar X)^2$

And the sample variance for this case can be calculated from this formula:

$s^2 = \frac{SS}{n-1}= \frac{600}{41-1}= 15$

a.15

Part c

For this case we have the sample size n = 25 and the sample variance is $s^2 =400$ , the standard error can founded with this formula:

$SE = \frac{s^2}{\sqrt{n}}= \frac{400}{\sqrt{25}}= 80$

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3 years ago

What is the volume of the square pyramid? 11cm and 11cm

AleksAgata [21]

Answer:

1331 feet3

Step-by-step explanation:

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2 years ago

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Whats the answer someone help

Tems11 [23]

The answer would be A

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3 years ago

M= 0 passes through the point (-1,3)

Len [333]

Answer:

y = 3

Step-by-step explanation:

I will assume you want to put this in slope intercept form.

We need to solve for b in y = mx + b since we are given a point and the slope.

y = 0x + b

y = b

3 = b

y = 3

Note that since the slope is 0, there will be nothing to represent m.

Best of Luck!

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3 years ago

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Mkey [24]

Is there a picture i could see or something?

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